Adaptive accelerometer feedforward servo for disk drives

Discusses the design and experimental verification of a direct adaptive control scheme to attenuate the effect of external disturbances on disk drives. The adaptive controller acts as an add-on compensator to the existing fixed compensator. An accelerometer which is mounted on the base casting of th...

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Bibliographic Details
Published inProceedings of the 36th IEEE Conference on Decision and Control Vol. 5; pp. 4216 - 4218 vol.5
Main Authors Pannu, S., Horowitz, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1997
Subjects
Accelerometers
Adaptive control
Application software
Disk drives
Electric shock
Error correction
Programmable control
Servomechanisms
Signal generators
Vibrations
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ISBN0780341872
9780780341876
ISSN0191-2216
DOI10.1109/CDC.1997.649495

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Summary:Discusses the design and experimental verification of a direct adaptive control scheme to attenuate the effect of external disturbances on disk drives. The adaptive controller acts as an add-on compensator to the existing fixed compensator. An accelerometer which is mounted on the base casting of the disk drive generates the input signal for the controller The control objective is to minimize the variance of the position error signal in the presence of external random vibrations. Experimental results show that reduction of 92% in the variance of the position error signal can be obtained.
ISBN:0780341872
9780780341876
ISSN:0191-2216
DOI:10.1109/CDC.1997.649495